BIM agrees with prefabricated building naturally. Thus this paper puts forward a view point that the value of BIM embodies in the fact that its 3D entity model provides the basic digital object for management collaboration. Around this viewpoint, this paper discusses the technical characteristics and application direction of BIM, including the version iteration, component recognition, model manipulation, and etc. Then, based on the discussion above, the key technical problems and solutions are explored, including the lightweight strategy based on data form, hybrid application of database, model display and control and associated management information on Web, QR code and RFID, and etc. At last, the prototype system is developed, and its effectiveness is verified through the actual engineering case.